18, Heol Hir
18, Heol Hir
Description & Estimates







18, Heol Hir, Cardiff is recorded publicly as a mid-century freehold house across 1,528 ft2 of internal area, sitting on a 416 m2 plot.
Locally, houses of this size normally have 4 bedrooms with a garden.
Our estimate of the sale value of 18, Heol Hir, Cardiff is £409,111 and its rental estimate is £1,830 per month, given the available information and assuming reasonable condition.
Heol Hir, Llanishen, Cardiff, CF14 falls within the CF14 postal district.
Our Data Sources
18, Heol Hir, Cardiff has a single entry in the Land Registry from July 2020 and a single entry in the EPC database dated March 2020.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 out of 5 and is considered of high accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 18, Heol Hir, Cardiff, we estimate a market value of £429,566 and a rental value of £1,922 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £380,473 and £1,702 per month respectively.
Recent Market Change
Over the last year, 18, Heol Hir, Cardiff has seen its estimated sale value decrease by £4,224 (1.0%) and its estimated rental value grow by £52 per month (2.8%). This results in an estimated gross rental yield of 5.4%.
Plot Size
HM Land Registry records the plot of land for 18, Heol Hir, Cardiff as measuring 416 m2.
That makes it the 3rd largest plot in the postcode, where all 22 other houses have recorded plot data.
Energy Efficiency
18, Heol Hir, Cardiff has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 25 Mar 2020.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 18, Heol Hir, Cardiff completed on 3rd July 2020 at £340,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 22.6% over the period since July 2020.
- Sold Jul 2020£340,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 18, Heol Hir, Cardiff have sold within a radius of 660 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 15th July 2025, was 75, Everest Avenue, Cardiff, CF14 5AR, a leasehold house which sold for £525,000.
Read more about house prices in CF14.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 145 addresses on Heol Hir, Llanishen, Cardiff, CF14, 18, Heol Hir, Cardiff comes out as the 5th largest and the 29th most expensive in our analysis of the public data.
It is also £44k more expensive than the average property across the CF14 district.
More reading links
Schools Nearby
Public Transport Nearby
From 18, Heol Hir, Cardiff, the nearest station is Llanishen, 500 metres away.
- 500mLlanishen
- 1.2kmTy Glas
- 1.4kmBirchgrove
Available Internet Speeds
Internet coverage here is poor, based on recent Ofcom data, and connectivity may be weak or unavailable.
According to recent data from Ofcom, Slow/none broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.

